He was married to popular singer and actress Doris Day, with whom he owned a series of business ventures named Arwin.

[1][2] In September 1957, Arwin Productions moved into a luxurious new building at 250 North Canon Drive in Beverly Hills, California.

[6][7] Peter Vincent Music was affiliated with performance rights organizations BMI in the United States and BUMA in Europe.

[8] In 1962, Melcher made his only foray into Broadway theatre with The Perfect Setup, a play starring Gene Barry, Angie Dickinson and Jan Sterling.

Day sued Melcher's business partner Jerome B. Rosenthal and was awarded nearly $23 million for fraud and malpractice following a 99-day trial.